Train-stopping mechanism.



J. P. WEBB, JR.

TRAIN STOPPING MECHANISM.

APPLICATION FILED 0(1'T.15,1908.

Patented June 22, 1909.

4 SHEETS-SHEET 1.

INVENTOR dean 7'7 Wai /1? i ATTORNEY;

J. F. WEBB, JR. TRA IN STOPPING MECHANISM. APPLIOATIOH FILED OCT. 15, 1908.

925,733. Patented June 22, 1909.

v 4 SHEETS-SHEET 2.

W1 TNESSES: IN l/E IV TOR J g Jean/Z Webb, Uh

J. F. WEBB, JR. TRAIN STOPPING MECHANISM.

APPLICATION FILED OUT. 16, 1908.

925,733 Patented June 22, 1909.

4 SHEETS-SHEET 3- T766170 74 W619 Jr;

ATTURNE VJ.

J. F. WEBB, JR. TRAIN S i OPPIN G MECHANISM.

APPLICATION FILED 00115, 1908.

Patented June 22, 1909.

, 4 sums-411mm 4.

INVENTOR UNITED STATS IfLFENT OFFICE.

JEAN r. WEBB,-JR.,

or NEW YORK, N. Y., ASSIGNOR T0 THEELECTRIO sreuAonAen & SEMA- ,PHORE 00., moonroaii'rnn, or NEW roan, N. Y.

'rnnrn-srorrme Mix-exerciser.

Specification of Letters Patent.

Application filed October 15, 1908.

Patented June 22, 1909.

Serial No. 457,930.

To all whom it may concern:

Be it known that I, JEAN F. WEBB, Jr., res

siding at New York, in the county of New York and State of New York, have inventedmatically opened when the train is in danger, and in which electro-magnetic locking deviees'are provided to hold the valve normally closed and the valve opening mechanism inoperative.

Primarily thisinvention has for its object to provide a stopping mechanism of a mag-.

net-locked gravity actuated type which will be simple in its construction, which will positively operate at the desired time, and which i will require a minimum current to hold the mechanism locked. More specifically my invention has for its object to provide a mechanism of the foregoing character operable in connection with closed circuit trainstopping systems wherein when a break in the circuit occurs (either through an opening of a track circuit terminal switch, a semaphore switch or the breaking of a wire) the valve opening mechanism will be released to open the valve and set the air brakes, thus bringing the train to a stop. The present invention embodies those novel details of construction, combination and arrangement of parts, all of which will be first described in detail, then be specifically pointed out in the appended claims, and

illustrated in the accompanying drawings, in which:

Figure 1, is a perspective view of my invention, the parts being in their normal or locked position with the valve closed. Fig.

connection between locking lever.

2, isa front elevation thereof.-' Fig. 3, is a detail elevation position of the parts just after the locking mechanism'has been released and the valve mechanism beginning to operate. Fig. 4, is an elevation showing the position of the parts when the valve has been opened. Fig. 5, is a horizontal section on the line ,5,,5 of Fig. 2. Fig. 6, is adetail view of a modified the armature and the 7, is a detail view of the Fig.

stern and the connection between the valve and part section showing the main shaft. Fig. 8, is a detail view showing the manner of inclosing my invention.

Referring now to' the accompanying drawings, in which like characters of reference indicate like parts in all of the figures, from a suitable base 1, which may be bolted or otherwise seciired to the locomotive or other part of the train, a pair of standards 1-1 project upwardly. These standards are connected at their upper ends by a bolt 1 which also formsa distance piece to hold the standards 1 separated the required distance at the top.

The standards 1 are provided with bearings in which a shaft 2 is journaled. Secured to one of the. standards 1 is the valve 25 which may be of the ordinary conductors type and providedwith a rotary stem 25 that has a tenon 25 to fit into the groove 2 of the shaft 2 and form a continuation of such shaft so that the valve stem 25 and the shaft 2 will turn together.

Secured to the shaft 2 to turn therewith is the valve opening lever 3 that is provided with an apertured hub 3 through which-the shaft p asses. keyed to the shaft 2 by a in 3 or otherwise so that the lever and sha -t will turn as one. At one end the lever 3 carries a. weight 3 that is provided with ahandle 3, by means of which the weight may be lifted to return the shaft 2 to its initial position' to close the valve, aswill be hereinafter more fully understood. At the other end the lever 3 is rovided with a lateral projection 3 upon w rich is mounted an iron-clad magnet 4, consisting of the core 4 the shell 4' and the windings 4, from which res ectively pass through an aperture in the she l {l and to which terminals a closed electric circuit (not shown) is adapted to be connected.

The valve operating arm or lever 3 is pro-' vided with alug 3 to which a stub shaft 5 is I secured, the shaft 5 projecting at substantially right angles to the arm or lever 3 and held in a plane above that containing the shaft 2 when the parts are in the position shown in Fig. 2, for a purpose which will be hereinafter more fully apparent. Upon the stub shaft 5 the locking lever 6 is pivoted, the locking lever 6 having'a hub 6 apertur'ed to fit onto the stub shaft 5 and the lever isheld in place on the stub shaft 5 byan ordinary The lever 3 and its hub a-re- 8O the terminals 4 -4 A cotterin 5 ',-or in any other suitable manner. he short end 6 of the lever is weighted asat 6 while the long end of the lever 6 is provided with the armature 6 that cooperates with the magnet 4.

Pivoted on a stud 6 that projects laterally from the lever 6 is a link 7 whose other end 1s pivoted at 8 to a second link 9 that is in turn pivoted at 3 to the valve operating lever 3. .The links 7 and 9 are spaced apart bythe pivot 8 to admit of a latch 10 operating between the links "Tand 9. The latch 10 1s P1V013%l at 10 to a stud that rojects from the link 7 and the latch 10 is he (1 to abut the pivot bar 8 by a coil s ring 1O that is secured -to the arm 10 of the latch 10and to a lug 10 on the link 7.

11 designates an arm projecting to one side of the standards 1 and secured rigidly to one of said standards. At the outer end the arm 11 has a stop 12 that is adapted to be engaged by the latch 10 when the parts are in theirnormal'position, as shown in Figs. 1,2 and 5 of the drawings.

' Instead of securing the armature 6 to the lockinglever 6 in a rigid manner, as shown in Figs. -1 to 5 inclusive of the drawings, I may connect the armature 6 with the lever 6 by a ball and socket joint 6 as shown in Fig. 6.

In the pra'ctical application of my invent1on'I prefer to connect the valve 25 tothe air bra e system ope'ratively in line with the engineers-valve and place themechanism in some location on the engine difhcultly accessibleby the engineer but so that he can reset the same in a manner which will hereinafter be more fully understood.

Any suitable means maybe provided for breaking the electric circuit to deenergize the magnet 4, and a detailed description thereof will not be necessary in this case.

Operation: Assume the parts to be in th'e osition shown in Figs. 1 and 2, with the valve 25 closed and current flowing through the magnet 4 to energize the same. The

magnet 4 being energized will retain its armature and hold the lever 6 in the locking position parallel with the lever 3,. as shown in Figs. ,1 and 20f the drawings. As soon as a break in the electric circuit occurs the mag- ,net 4 will be denergized and will therefore release the armature 6. As soon as the armature 6 has'been released the weight 6 turns the lever 6 on its pivot 6 and draws the links 7 and 9 into the position shown in Fig. 3. The movement of'the links 7 and 9,

' from the osition shown in Fig. 1, to that shown in Fig.- 3, causes the latch 10 to be come released from the stop 12 and thereby permits thev Weight 3 to come into action. he weight 3 then moves the arm to the po- ,sition shown in Fig. 4, which causes the shaft 2 and the valve stem 25 to turn, thus opening the valve 25 and permitting the air tq 'exslightly above that of the shaft 2. done so that when .theqaarts are in' the posi- "the casing walls and the fixed sto haust to set the brakes in a manner well understood by those skilled in the art to which I the invention appertains. In moving the shaft 2 the weight 3 is aided by the weight 6'-'' and the members connecting the lever 6 with the lever It is to be noted that the pivot or fulcrum of the lever 6 is not in alinement with the pivot of the lever 3, but is arranged so that when the parts' are in the potion shown in Figs 3, the pivot 6 will be This is tion shown in Fig. 4, the weight 6" will exert a force in the direction of the arrow X in Fig. 4, and hold the armature 6 against the magnet 4, so that as soon as the magnet 4 is energized it will immediately retain the armature 6 without the necessity of drawing it from afar. The 0 ening of the valve 25, as before stated, sets the air brakes. In ordertostart the train, it is necessary for the engineer to obtain access to the train stopping mechans ism, grasp the handle 3 and lift the weight 3- into the position shown in Fig. 2. 'If the magnet 4 has become energized, it will hold the lever 6 in'its locking position so that as the engineer raises the welght 3 to bring the members into the position shown in-Fig. 2, the latch 10 will pass the stop 12 until it rests upon it as shown in Fig. 2. However should the broken circuit not have been closed at the time the engineer attempts to reset the stopping mechanism the magnet 4 will be 'de- 4 energized and hence any attempt to re-set the train stopping mechanism would result in a failure, as the weight 6 will hold the latch 10 out of alinement with the stop 12, until the magnet 4 becomes energized again.

The entire mechanism shown in Figs. 1 to 7 of the drawings may be inclosed in a casing, as indicated in Fig. 8, and when inclosed in a casing, the shaft 2 is j ournaled in bearings in Wal s. In this jected from one of the casing ond in purpose form the casing walls corres and function to the standar s 1 and to the arm 11 which carries the stop 12 in the form shown in Figs. 1, 2 and 3, of the drawit is thought the complete construction, opi

eration and advantages of my invention W11 be readily understood by those skilled in the art to which the invention appertains.

What I claim is: 1. In an a paratus of the class described, a rotatable -s aft, a weighted actuating lever 12 is pro s f course I desire it understood that I do the same in one a fixed stop to carried thereby to turn the shaft in one direction, a weighted locking lever pivoted to said actuating lever, electro-magnetic means carried by said levers for normally holding the same 1n one position, a latch mechanimhsupported by said levers and a fixed stop to cooperate with said latch mechanism to hold said actuating lever from operation at times.

2. In an apparatus of the class described, a rotatable s aft, a weighted actuating lever carried thereby to turn the shaft in one direction, a Weighted locking lever pivoted to said actuating lever; electro-magnetic me ans .a rotatable s carried by said levers for normally holding the same inone ositiofi, a latch mechanism, afixed stop to e engaged by said latch to hold the operating lever in one position, and

means for releasing said latch from said fixed .said actuating lever, electro-magnetic means carried by said levers for normally holding position, a latch mechanism, e engaged by said latch to hold the operating lever in one position, means for releasing said latch from said fixed stop when the locking lever is released, said last named means comprising a link connected to said locking lever, said latch being mounted on said link.

4. In an a paratus of the class described, a rotatable shaft, an actuating lever carried thereby to turn the shaft, a locking lever pivoted to said actuating lever, electromagnetic means for normally holding said levers in one position, a latch mechanism coo erating with said levers, and a fixed stop to een aged by said latch mechanism to hold sai actuating lever from operation while under .the influence of the electromagnetic means.

'5. In an a paratu's of the class described, a rotatable s iaft, a Weighted actuating lever carried thereby to turn the shaft in one direction, a'weighted locking lever pivoted to said actuating lever, electro-magnetic .means carried by said levers for normally holding the same in one position, a latch mechanism supported by said levers and a fixed sto to 006 erate with said latch mechanism to hold sai actuating lever from operation'at times,

i and an air brake valve having a stem interengaged with said rotatable shaft to turn therewith.

6. In an a paratus of the class described, a rotatable sh aft, a weighted actuating lever carried thereby to turn the shaft in one direction, a weighted locking lever pivoted to said actuating lever, electro-magnetic means carried by said levers for normally holding the same in one position, a latch mechanism,

a fixed stop to be, engaged by said latch to hold the operating lever in one position, means for releasing said latch from said fixed stop when the locking lever is released, and an air brake valve having a stem interengaged with said rotatable shaft to turn therewith.

7. In an apparatus of the class described, a rotatable shaft, a weighted actuating lever carried thereby to turn the shaft in one direction, a weightedlocking lever pivoted to said actuating lever, elcctro-magnetic means carried by said levers for normallyholding the same in one position, a latch mechanism, aifixed stop to be engaged by said latch to hold the operating lever in one position, means for releasing said latch from said fixed stop when the locking lever is released, said last named means comprising a link connected to said locking lever, said latchbeing mounted on said link, and an air brake valve having a stem interengaged with said rotatable shaft to turn therewith.

8. In an apparatus of the class described,

a rotatable shaft, an actuating lever carried thereby to turn the shaft, a locking lever pivoted to said actuating lever, electromagnetic means for normally holding said levers in one position, a latch mechanism cooperating with said levers, a fixed stop to be engaged by said latch mechanism to hold said actuating lever from operation while under the influence of the electro magnetic means, and an air brake valve having a stem interengageable with said rotatable shaft to turn therewith.

9. In an apparatus of the class described, a rotatable shaft, a rotatable air valve connected to said shaft, a weighted actuating lever carried by said shaft to turn the shaft, a locking lever pivoted to said-actuating lever, electro magnetic means for holding said locking lever in one position, a latch -mechanism cooperatively connected with said locking lever and said actuating lever for holding said leversvin one position, and means for turning said locking lever on its pivot when the electro-magnetic holding means becomes inoperative.

10. In an apparatus of the class described, a rotatable shaft and a valve mechanism connected therewith to be actuated thereby, an actuating lever carried by said shaft, means for moving said actuating lever in one direction at times, a locking mechanism carried by the actuating lover, a fixed stop cooperating with the locking mechanism to hold the actuating lever in one position, means for releasing said locking mechanism at times to release said actuating lever to turn the shaft.

11. In an apparatus of the class described, a rotatable shaft, an actuating lever carried thereby, a locking lever carried by the actuating lever, a latch carried by the locking i and actuating levers, a fixed stop to be engaged by said latch at times to hold the actuating lever in one position when the looking lever is locked, and electroemagnetic means forholding the locking lever in its locked osit-ion.

12. n an apparatus of the class described, a rotatable shaft, an actuating lever carried thereby, -a locking lever carried by the actuating lever, a latch carried by the locking and actuating levers, a fixed sto to be engaged by said latch at times to ho d the actuating lever in one position when the locking lever is locked, electro-magnetic means for holding the locking lever in its locked position, and meaiis carried by the locking lever which when the locking lever is released will withdraw the latch from the fixed stop and release the actuating lever.

13. In an apparatus of the class described, a rotatable shaft, an actuating lever carried thereby, a lockin lever carried bythe'actuating lever, a late carried by the locking and actuating levers, a fixed stop to be engaged by said latch at times to hold the actuating lever inone position when the locking lever islocked, electro-magnetic means for holding the locking lever in its locked position, means carried by the locking lever which when the lockin lever is released will withdraw the latch from the fixedstop and release the actuating lever, and means for moving the actuating lever when releasedto turn the shaft.

14.' In an apparatus of the class described, a rotatable shaft, an actuating lever carried thereby,a locking lever carried by the actuatinglever, a latch carried by the locking and actuating levers, a fixed stop to be engaged by said latch at times to hold the actuating lever in one position when the locking lever islocked, electro-magnetic meansfor holding the locking lever in its locked position, means carried by., the lockinglever which when the locking lever is released will withdraw the latch from the fixed stop and release the actuating lever, means for moving the actuatinglever when released to turn the shaft, said last named means comprising a weight carried by the actuating Lever and operating under the influence of gravit,y.

15. In an apparatus of the class described,

a rotatable shaft, an actuating lever carried thereby, a locking lever carried by the actuating lever, a latch carried by the locking and.

actuating levers, a fixed sto to. be engaged by said latch at times to ho d the actuating lever in one position when the locking lever is locked, electro-magnetic means for holding the locking lever inits locked position, means carried by the locking lever which when the lockin lever is released will withdraw the latch rom the fixed stop and release the actuating lever, means for moving the actuating lever when released to turn the shaft, said last named means comprising a weight carried by the actuating lever and operating under the influence of gravity, said electromagnetic means comprising an electromagnet carried by one of said levers and an armature carried by the other lever. M

16. In an ap aratus of the class described, a rotatable s aft and a valve operable thereby, an actuating lever carried by the shaft for turning the same, a weight on one end of said lever, an electro-magnet supported on the other end of said lever, a lockmg lever pivotally mounted on said actue ating lever, an armature carried by one end of said locking lever to cooperate with the electro-inagnet, a weight on the other end of said locking lever, link connections between the locking and actuating levers, a latch mounted on said link connections, a fixed stop to be engaged by said latch at times, all being arranged so that when the electroma net is energized the locking lever will hold thelatch inengagement with the fixed stop andwhen the ma net isdeenergized the locking lever will with raw the latch from the fixed stop to permit the actuatinglever weight to move the actuating lever under the influence of gravity to rotate said shaft andoperr the valve,

JEAN F. WVEBB, JR. Vitnesses GEO. B. PITTS, ALBERT E. DIETERICH. 

